Connected: An Internet Encyclopedia
RFC 1812 - 4.3.2.2 ICMP Message TTL

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### 4.3.2.2 ICMP Message TTL

When originating an ICMP message, the router MUST initialize the TTL. The TTL for ICMP responses must not be taken from the packet that triggered the response.

Next: 4.3.2.3 Original Message Header

Connected: An Internet Encyclopedia
RFC 1812 - 4.3.2.2 ICMP Message TTL